Protektive Pak 39132 provides physical protection with conductive material providing reliable path-to-ground Rolled side construction (double thickness) for greater strength Product ships assembled Conductive material (1 x ² to < 1 x ⁵ ohm) provides reliable path-to-ground Superior strength and durability; made from extruded, high impact polypropylene materials Chemical and moisture resistant Ideal for use where corrugated and paper products cannot be used Economical alternative to injection molded products Reusable, ensuring best value** Made in the United States of America.